[x+a]=-4

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Solution for [x+a]=-4 equation: 


Simplifying
[x + a] = -4

Reorder the terms:
[a + x] = -4

Remove brackets around [a + x]
a + x = -4

Solving
a + x = -4

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-1x' to each side of the equation.
a + x + -1x = -4 + -1x

Combine like terms: x + -1x = 0
a + 0 = -4 + -1x
a = -4 + -1x

Simplifying
a = -4 + -1x

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